issued from : Sars G.O. in An Account of the Crustacea of Norway. Vol. IV. Copepoda Calanoida. Published by the Bergen Museum, 1903. [Pl.CI]. Female and Male. Rem: P5 = fifth leg
issued from : G.A. Boxshall & S.H. Halsey in The Ray Society, 2004. [Fig.2, p.51]. Female: A, habitus (dorsal view); B, P5. Male: P5. D, Mxp.; E, A2. A-C from Sars, 1903; D-E from Huys & Boxshall, 1991. Rem: P5 = fifth leg
issued from : N.V. Shadrin & E.V. Popova in Hydrobiologia, 1994, 292/293; [Fig.1, p.180]. Schematic representation of the urosome (B) and last prosomal segments for two forms (A and N) (years 1976 and 1989-90) 1-10: the numbers of the areas having different number of spines (See p.181-183, table 2,2a,3,4). Black Sea (Crimean south-western part)
issued from : J.M. Brylinski in J. Plankton Res., 1981, 3 (2). [Fig.2, p.257]. Structure of P5 of the Acartia in the wet docks of the harbour of Dunkirk (Strait of Dover). Male and Female
a: Acartia clausi; b: A. tonsa, c: A. discaudata, d: A. bifilosa
issued from : J.M. Brylinski in J. Plankton Res., 1984, 6 (6). [Fig.1, p.962]. Different types of anomalies of P5 Female in the wet docks of the harbour of Dunkirk and in the Strait of Dover. a: P5 (normal), b-q: P5 (withh anomalies). Rem: P5 = fifth leg
ssued from : J.M. Brylinski in J. Plankton Res., 1984, 6 (6); [Fig.2, p.963]. Stucture of P5 Male. c: P5 (normal); d: P5 (with anomaly). Rem: P5 = fifth leg
issued from : J. M. Bradford in N.Z. J. Mar. Freshw. Res., 1976, 10 (1). [Figs.2,3]. Female ( from W France: Brest; Italy: Genoa Harbour): 1a, habitus (lateral view); 1b, idem (dorsal view); 1c, caudal rami (right, L: length, W: width); 1d-f, P5; 2, genital segment, a-c: dorsal view; d-f, lateral view. Rem: P5 = fifth leg
issued from : J. M. Bradford in N.Z. J. Mar. Freshw. Res., 1976, 10 (1). [Fig.4]. Male ( from W France: Brest; Italy: Genoa Harbour): : a, habitus (lateral view); b, idem (dorsal); c, P5 (anterior surface); d, posterior surface of left basipod 2 of P5; e, terminal segment of left P5. Rem: P5 = fifth leg
issued from: Q.-c Chen & S.-z. Zhang in Studia Marina Sinica, 1965, 7. [Pl.49, 1-4]. With doubt. Female (from E China Sea): 1, habitus (dorsal); 2, P5 (posterior).
Male: 3, habitus (dorsal); 4, P5 (posterior).
Issued from : K.A. Brodskii in Calanoida of the Far Eastern Seas and Polar Basin of the USSR. Opred. Fauna SSSR, 1950, 35 (Israel Program for Scientific Translations, Jerusalem, 1967) [p.420, Fig.296]. Female (from Sea of Japan): habitus (dorsal); S5, P5.
Male: habitus (dorsal); S5, P5 (Le = left leg; Ri = right leg).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.42, fig.32]. Female: 32, habitus (dorsal).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.43, Fig.3]. Female: 3, thoracic segment 5 and urosome (ventral).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.43, Fig.5]. Male: 5, habitus (dorsal).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.43, Fig.14]. Male: 14, anal segment and caudal ramus (dorsal).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.4]. Female: 4, A1 (ventral view).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.13]. Female: 13, A2.
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.14]. Female: 14, Mx1 (posterior view).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.15]. Female: 15, Mxp.
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.28]. Female: 28, P5
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.37]. Female: 37, Mx2 (posterior view).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, 2]. Male: 2, right A1.
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.6]. Male: 6, left A1 (ventral view).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.9]. Male: 9, right A1 (distal portion).
issued from : W. Giesbrecht in Fauna Flora Golf. Neapel, 1892, 19. [Taf.30, Fig.36]. Male: 36, P5. Pd = right leg; Ps = left leg; B = basipodite; Re = exopodite.
issued from : G. Zagami & L. Guglielmo in Mem. Biol Mar. Oceanogr.,1988-89, 17. [p.62, Fig.1]. Comparison between and from Sicilia (Italia). Acartia clausi: a, urosome female (dorsal view); b, urosome male (dorsal view); c, P5 male.
Acartia margalefi: d, urosome female (dorsal view); ; e, urosome male (dorsal view); f, P5 male.
issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1924, 26 (5). [p.103, Fig. L). Female (from San Francisco Bay): 1, P4; 2, P2; 3, P3; 4, habitus (dorsal); 5, ending margin of last thoracic segment and genital segment (lateral, right side); 6, A2; 7, forehead (lateral); 8, P1; 9, genital segment (ventral); 10, habitus (lateral); 11, Md (cutting edge); 12, P5; 13, right P5; 14, A1. Nota: Relative lengths of segments of cephalothorax (along middorsal line) 52:17:7:13:15. Relative lengths of abdominal segments and caudal rami 17:7:4:8
issued from : C.O. Esterly in Univ. Calif. Publs Zool., 1924, 26 (5). [p.104, Fig. M). Male: 1, grasping A1; 2, denticulation on grasping A1, proximal to geniculation; 3, habitus (dorsal); 4, forehead (lateral); 5, terminal segment of left P5; 6, terminal part of Mxp; 7, left P5; 8, exopod of P1; 9, margin of last part of thorax, to show spines; 10, P5; 11, habitus (lateral); 12, posterior margin of thorax and urosome. Nota: Relative lengths of segments of cephalothorax (along middorsal line) 50:18:6:15:12. Relative lengths of abdominal segments and caudal rami 9:11:6:4:4:7.
issued from : C. Razouls in Th. Doc. Etat Fac. Sc. Paris VI, 1972, Annexe. [Fig.56, B, D, F]. Female (from Banyuls, G. of Lion): B, urosome (lateral); D, P5; E, urosome (dorsal).
issued from : C. Razouls in Th. Doc. Etat Fac. Sc. Paris VI, 1972, Annexe. [Fig.57, A]. Female (from Banyuls, G. of Lion): A, P5.
issued from : P. Crisafi & M. Crescenti in Boll. Pesca Piscic. Idrobiol., 1972 (1974), 27 (2). [p.241, Pl.I]. Female (from Milazzo, Sicily): f, habitus (dorsal); f ad, posterior thoracic part and urosome (dorsal; f ad l, idem (lateral); f P5, P5; f A1, A1.
Male: m ad, posterior thoracic part and urosome (dorsal); m P5, P5
issued from : R.-M. Bathélémy in J. Mar. Biol. Ass. U.K., 1999, 79. [p.860 ,Fig.3, A-B]. Scanning electon miccrograph. Female (from Gulf of Marseille, NW Mediterranean Sea): A, genital area (external ventral view); B, internal dorsal view (note the characteristic loop-like form of the seminal duct sd). Scale bars: 0.030 mm (A); 0.020 mm (B). Symbols: * = fixation site of the spermatophore; small arrow = genital slit; sd = seminal duct; sr = seminal receptacle; ap = apodeme; ed = egg-laying duct.
issued from : A. Steuer in Arb. zool. Inst. Univ. Innsbruck, 1923, 1 (5). [p.7, Figs.9-13]. As Acartia clausi var. gaboonensis. With doubt. Female (from Cameroon): 9, habitus (dorsal); 10, last thoracic segment and urosome (dorsolateral); 13, P5.
Male: 11, last thoracic segment and urosome (dorsal); 12, P5
issued from : A. Steuer in Arb. zool. Inst. Innsbruck, 1923, 1 (5). [p.44, Figs.176, 177]. Comparison of the genital segment (left lateral view) in Acartia clausi (176) and Acartia clausi var. gaboonensis (177).
issued from : A. Steuer in Arb. zool. Inst. Innsbruck, 1923, 1 (5). [Taf.II, Figs.2, 3]. Female: 2, genital segment with spermatophore (lateral; 3, idem (ventral). DK = chitinous cap ( Gruber's cap); Tr = funnel.
issued from : A. Steuer in Sber. Akad. Wiss. Wien, mat.-nat. K1, 138, Abt.1, 1929. [p.501, Fig.2]. Male (from Naples, Mediterranean Sea]: 2, right P5. Re2 = exopodite 2.
issued from : L. Seuront in J. Plankton Res., 2005, 27 (12). [p.1303, Table I]. Comparisons of distinctive characters of Acartia species closely related to each other.
Issued from : W. Giesbrecht in Systematik und Faunistik der Pelagischen Copepoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. – Fauna Flora Golf. Neapel, 1892. Atlas von 54 Tafeln. [Taf.31 , Figs.36, 37 ]. Female: 36, P1 (anterior view); 37, P4 (posterior view).
issued from : J.M. Brylinski in J. Plankton Res., 1984, 6 (6). [Tableau.1, p.964]. Results of the countings of the normal and abnormal animals in samples analyzed to Acartia clausi in diferent regions.
issued from : R. Huys & G.A. Boxshall in Copepod Evolution. The Ray Society, 1991, 159. [p.65, Fig.2.2.12, A-C]. From The Netherlands: Vlissingen, West Schelde estuary): A, A2; B, margin of allobasis, showing muscle and ligaments connecting proximal setae; C, distal tip of endopod with double seta representing fourth segment (arrowed).
issued from : R. Huys & G.A. Boxshall in Copepod Evolution. The Ray Society, 1991, 159. [p.77, Fig.2.2.24, E]. E, Mxp.
issued from : C. Razouls in Th. Doc. Etat Fac. Sc. Paris VI, 1972, Annexe. [Fig.58]. As Acartia sp. A Female (from Banyuls, G. of Lion): A, P5; B, urosome (dorsal).
Nota: After Brylinski (1984) this form is an anomaly from Acartia clausi.
issued from : C. Razouls in Th. Doc. Etat Fac. Sc. Paris VI, 1972, Annexe. [Fig.59]. As Acartia sp. A Female (from Banyuls, G. of Lion): A, Md; B, Mx1; C, Mxp; D, A2; F, labrum.
issued from : C. Razouls in Th. Doc. Etat Fac. Sc. Paris VI, 1972, Annexe. [Fig.60]. As Acartia sp. B Female (from Banyuls, G. of Lion): A, Md; B, Mxp; C, urosome; D, A1; E, A2; F, P5.
Nota: After Brylinski (1984) this form is an anomaly from Acartia clausi.
issued from : S.B. Schnack in Crustacean Issue, 1989, 6. [p.143, Fig.6: 11]. 11, Acartia clausi (from off NW Africa, upwelling region): Cutting edge of Md.
issued from : B.K. Sullivan, C.B. Miller, W.T. Peterson & A.H. Soeldner in Mar. Biol., 1975, 30. [p.179, Fig.4, D]. Acartia clausii (from 44°40'N, 124°10'W) female: D, SEM of right Md (posterior surface).
issued from : G. Trégouboff & M. Rose in Manuel de planctonologie méditerranéenne, 1957, CNRS, Paris. [Pl. 125]. Acartia clausi (from Mediterranean Sea). Paradinium poucheti (Pa.Po) in the copepod's coelome.
issued from : A. Ianora, B. Scotto di Carlo, M.G. Mazzocchi & P. Mascellaro in J. Plankton Res., 1990, 12 (2). [p.253, Fig.4, C]. Acartia clausi female (from Gulf of Naples, Italy) parasitized by the dinoflagellate Blastodinium, with infection rates of 1 % or less throughout the year.
Issued from : J.M. Bradford-Grieve in ICES Identification Leaflets for Plankton N°181, 1999 [p.7, Figs.1 a-g]. As Acartia (Acartiura) clausii. Female: 1a, habitus (dorsal); 1b, same (lateral); 1c, genital double-somite; 1d, same (lateral); 1e, P5. Nota: Posterior prosome bordered with 2-4 strong spines dorsally and some stiff hairs ventrally. Right caudal ramus length:width 1.83-2.08. Genital double-somite and urosomite 2 bordered posterodorsally with conspicuous spines. Genital double-somite length:width 1.10-1.20 in dorsal view widest part is on anterior 1/3 of somite, and genital swelling centrally placed in lateral view. A1 slightly shorter than prosome, segment 5 with a distinct denticle anteriorly. P5 terminal spine thick.
Male: 1f, P5 (L = left leg; R = right leg); 1g, last thoracic segment and urosome (lateral). Nota: Posterior prosome bordered by dorsal spines and ventral stiff hairs. Genital somite bordered by posterodorsal hairs. Urosomites 2-4 bordered by posterodorsal small spines; and urosomite 2 with small spinules laterally. Right caudal ramus length:width 1.02)1.24. Basis of left P5 with 2 rows of small spines, 1 row on inner edge ridge, other on posterior surface; exopodal segment 1 with some anterior surface spinules and inner edge hairs; exopodal segments 2+3 shorter than exopodal segment 1 with a slightly convex distal border and length of posterior spine just less than half that of its segment and longer than anterior spine inserted distal to anterior spine. Right exopodal segment 1inner distal lobe with proximal border at right angles to rest of segment, exopodal segment 2 inner lobe with 1 distal and 1 proximal spinule and distoposterior knob.
Issued from : E. Chatton in Arch. Zool. Exp. & Gen., 1920, 59, [Pl. IV, 42]. Acartia clausi female (from Banyuls), with the general cavity is envaded by the plasmode of Paradinium poucheti (Dinoflagellate). t.D.: gut; Par.P.: Paradinium poucheti.
Issued from : E. Chatton in Arch. Zool. Exp. & Gen., 1920, 59, [p.286, Fig.133 bis & ter]. Acartia clausi female (from Banyuls) parasited by Ichthyosporidium sp. (Dinoflagellate). A: young plasmode located against the stomacal wall, oesophagus omitted. B: bouquet of tubes short and branched out in contact of gut.
Issued from : E. Chatton & M.O. Soyer in Annals Sci. nat., Zool., Paris, 1973, 15 (1). [p.37, courbe 1]. Comparative curve showing the number of cystes (sporosheres) from Paradinium poucheti sent out by Acartia clausi function of time in three types of experimental conditions.
Issued from : N.H. Marcus in Mar. Biol., 1990, 105. [p.415, Fig.2, b]. Egg of Acaertia clausi from sediment (coast of northern California, in February-April 1989). Egg diameter (µm); 71.2 ± 3.0 (N = 15) (sediments, February); 72.7 ± 2.6 (sediments, April). . Egg sueface smooth.
Issued from : M.G. Mazzocchi in Guida al Riconoscimento del plancton dei Mari Italiani, Vol. II, 2006. [p.83, Tav. 75]. After A. Comaschi. Female: a-b, habitus (dorsal and lateral, respectively); c, genital segment (dorsal); d, same with spermatheca (lateral); e, P5.
Male: f, habitus (dorsal); g, right A1 with geniculation; h, urosome (lateral); i, P5; L, exopodal segment 1 of left P5 (posterior view); m-n, distal segment of left P5 (various views).
Issued from : M.S. Kos in Field guide for plankton. Zool Institute USSR Acad., Vol. II, 1976. After Brodsky, 1950. Female: 1, habitus (dorsal); 2, P5. Male: 3, habitus (dorsal); 4, P5.
issued from : P.S.B. Digby in J. Mar. Biol. Ass. U.K., 1950, 29. [p.403, Fig.6]. Life history of Acartia clausi at station L (5 miles from Plymouth, English Channel). A: abundance of copepodite stages; B: percentage distribution of stages; C: size-groups of adult females; D: suggested interpretation of generations (or cohorts) succession during the year (1947). Correlate the size variations with the water temperature at station L4 (p.397, Fig.1). The author deduces the succession of 5 generations.
issued from : P.S.B. Digby in J. Mar. Biol. Ass. U.K., 1950, 29. [p.397, Fig.1]. Temperature of the water at 1 and 30 m depth at station L4 (5 miles from Plymouth, English Channel) during 1947.
issued from : R. Gaudy in Rec. Trav. St. Mar. End., 1962, 27 (42). [p.140, Fig.3]. Population dynamics of Acartia clausi in the Gulf of Marseille (43°15'30''N, 5°17'02''E) during 1960-1961. A: Frequenciy distributions of size classes (cephalothoracic lengths females from 1 to 6); B: Number of adults (males and females) and nauplii by haul; C: Percentage of the different stages (N: naulii, 1-5: copepodites, 6: adults); D: Interpretation of successive generations. Class of sizes (in mm): 1 = 0.700-0.799; 2 = 0.800-0.849; 3: 0.850-0.899; 4 = 0.900-0.949; 5: 0.950-0.999; 6 = 1.000-1.049;
Gaudy (p.138) points to 6 generations by year in the Gulf of Marseille (NW Mediterranean Sea).
issued from : J.-M; Brylinski, D. Bentley & C. Quishoudt in J. Plankton Res., 1988, 10 (3). [p.507, Fig.4]. Lenth prosome histogramm (in mm) of Acartia clausi females (F) and males (M) in relation to the transect from Boulogne-sur-Mer to Dover, through the Dover Strait (stations 1 to 13). The dotted line is arbitrary reference. Each stations equidistant.
issued from : A. Ianora & I. Buttino in J. Plankton Res., 1990, 123 (3). [p.475, Fig.1, B]. Acartia clausi females from Gulf of Naples: Seasonal fluctuations in egg production rates after 24 h. Mean values obtained by averaging egg data for all females (continuous line), including those that had not laid eggs, and only in cases where egg deposition had occurred (dashed line).
issued from : U. Brenning in Wiss. Z. Wilhelm-Pieck-Univ. Rostock - 36. Jahrgang 1987. Mat.-nat. wiss. Reihe, 2. [p.32, Figs.5, 6]. Spatial distribution and T-S Diagram for Acartia clausi from 8° S - 26° N; 16°- 20° W, for diferent expeditions (V1: Dec. 1972- Jan. 1973; V2: Feb/Mar. 1973; VI: May 1974; IV: Jun./Jul. 1972). SO: Southern Surface Water (S °/oo: 34,50; T°C: 29,0); ND: Northern Water of the Surface Layer (S °/oo: 37,5; T°C: 21,0); SD: Southern Deep Water of the surface layer (S °/oo: 35,33; T°C: 13,4). See commentary in Temora stylifera and Brenning (1985 a, p.6).
issued from : R. Gaudy in Tethys, 1972, 4 (1). [p.237, Fig.36]. Schematic quantitative abundance of Acartia clausi in the Gulf of Marseille (Mediterranean Sea) established from samples during the period between ending 1960 to ending 1967.
Gaudy (p.198) points to 6 generations per year. The sex ratio is in favor of females ≥ 60-80 %, except in winter
issued from : S. Eriksson in ZOON, 1976, 4. [p.157, Fig.2]. Seasonal distribution of neritic copepod Acartia clausi off Gothenburg (Göteborg), The Skattegatt. (Monthly means for adult specimens during 1968-1973; point : inshore, depth = 10 m; x: offshore, depth > 40 m.
The congeneric species A. clausi and A. longiremis have a tendency for seasonal separation and different temperature optima.
issued from : S. Eriksson in ZOON, 1976, 4. [p.159, Fig.3, f]. Temperature occurrence of neritic copepod Acartia clausi off Gothenburg (Göteborg), The Skattegatt. .Surface salinity of the investigation area varies around 25 p.1000 and the deep water slinity around 34 p.1000. There is a temperature stratification with surface water warmer than 10°C from May to October with maximum of 20°C in August. The coldest period is January to March with surface temperatures of 1-2°C. The deep water ranges between 5 and 10°C. The hauls were horizontal at 2, 20, and 40 m. Limits subjectively regarded as the optimum temperature range: 5-20°C.
issued from : S. Eriksson in ZOON, 1973, 1. [p.59, Fig.25]. Size distribution of adult females of Calanus helgolandicus (offshore station H6:11°30' N, 57°40'.5 E, The Kattegatt) during 1969-70 in the main series.
issued from : S. Eriksson in Mar. Biol., 1974, 26. [p.320, Figs. 2-3] Salinity and temperature curves for main series at offshore station H6 (11°30' N, 57°40'.5 E, The Kattegatt) from March 1968 to November 1970.
issued from : I.A. McLaren inJ. Fish. Res. Board Can., 1978, 35. [p.1338, Fig.7]. Life cycles of Acartia clausi in Loch Striven (55°55'N, 05°10'W). Relative abundance of C V as a percentage of all copepodids (lower panel); size and numbers per haul (including combined hauls from 60 m to 10 m and 10 to 0 m) of adult females (middle panel), and percentage of nauplii and copepodids above 10 m (from split hauls, taken from 60 to 10 m and 10 to 0 m) (upper panel). Successive generations as infered from peaks in the C V cohorts and size changes designated as Go, G1, etc. Data from Marshall (1949, tables VIII and XV).
Issued from : R.J. Conover in Rapp. P.-v. Réun. Cons. int. Explor. Mer, 1978, 173. [p.69, Fig.54]. Regression between rate of ingestion (I) for Acartia clausi from Bedford Basin, Nova Scotia (Canada) and particle concentration in the same environment.
Issued from : R.J. Conover in Bull. Bingham Oceanogr. Coll., 1956, XV. [p.181, Fig.13]. Size distribution of adult females Acartia clausi from Long Island Sound ( U.S.A.) at different times of the year, 1952-1953.
Issued from : R.J. Conover in Bull. Bingham Oceanogr. Coll., 1956, XV. [p.176, Fig.11, A, B]. Seasonal distribution in percent of total organisms of adults and naupliiAcartia clausi from Long Island Sound ( U.S.A.) 1952-1953. The number of generations was estimated from the distribution of nauplii and adults. The nauplii of each generation are designated by Roman numerals and the corresponding adults in Arabic. An estimate of 4 generations a year was obtained using data from 1953 (B) supplemented by the information recorded from 1952.
Nota: Adults noted about December 1, 1952 have been designated 0. Some of the offspring (I) of this primary breeding stock reached maturity in February and were designated 1. The precise designation of adults 1 is complicated by subsidiary peaks in December and January, but a second naupliar peak II was undoubredly produced by these adults. Adults 2 matured in Aptil of both 1952 and 1953 and probably produced nauplii III, although a gap in the 1953 data makes the exact date of origin of this generation questionable.
Issued from : M.R. Landry in Int. Revue ges. Hydrobiol., 1978, 63 (1). [p.89, Fig.5]. Stage-specific abundance of A. clausi from Jakle's Lagoon in 1973 and 1974. Cohorts (I-XI are delimited by the alternate pattern of shading.
Nota: The population dynamics and production of A. clausi were studied in a small temperate lagoon (surface area of approximateky 25,600 m2, mean depth 2.4 m) located on the southern end of San Juan Island (Washington) situated north of Puget Sound. An approach which integrated laboratory and in situ experiments with time-series sampling of the field population. The cycles of abundance were similar in the two years of study and were not affected by differences in the cycles of tidal inflow, temperature, and food availability even though the latter two factors appreciably affected growth, development, and fecundity rates. The abubdance cycle is controlled by an annually consistent pattern of copepodid and adult mortality believed to be due predation by the three-spined stickleback (dominant fish species in the lagoon). Cannibalism and periodic tidal stimulation of hatching of accumulated eggs in the sediment help to regulate population abundance within seasonal limits.
Issued from : M.R. Landry in Int. Revue ges. Hydrobiol., 1978, 63 (1). [p.96, Fig.10]. Seasonal changes in cephalothorax lengths of C. calusi adult males (broken line) and females (solid line) of A. clausi (from Jakle's Laggon). Vertical lines denote 95% confidence limits.
Issued from : M.R. Landry in Int. Revue ges. Hydrobiol., 1978, 63 (1). [p.87, Fig.3].Seasonal cycle of environmental variables in Jakle's Lagoon). Horizontal broken line denotes sill height.
issued from : C. Halsband & H.J. Hirche in Mar. Ecol. Prog. Ser., 2001, 209. [p.222, Fig.3]. Acartia clausi. Reproductive parameters at Helgoland Roads. (a) Cumulative egg production (eggs by female) of 5 individuals during 2.5 d period; (b) egg production rate, EPR; (c) proportion of females spawning; (d) prosome length.
issued from : C. Halsband & H.J. Hirche in Mar. Ecol. Prog. Ser., 2001, 209. [p.221, Fig.2]. Seasonal cycles of (a) temperature and salinity at Helgoland Roads. (b) phytoplankton at Helgoland Roads. 'others' = total phytoplankton carbon - diatom carbon. Phytoplankton data smoothed by 3-point running average.
issued from : C. Halsband & H.J. Hirche in Mar. Ecol. Prog. Ser., 2001, 209. [p.224, Table 2]. Correlation coefficients (r2) between temperature at collection (T), prosome length (PL), clutch size (CL), egg production rate (EPR), diatom carbon (Diat), non-diatom carbon (NonDiat), and total phytoplankton carbon (PPC) at Helgoland Roads. Clutch size = daily egg production rate of spawning females. Sample size in parentheses. Significance levels = * p<0.01; *** p < 0.0001.
Issued from : S. Boyer, M. Bouvy & D. Bonnet in Estuar, Coast. Shelf Sci., 2013, 117. [p.129, Fig.3 A, B]. Acartia clausi: A, Abundance (ind. 33) over a year at the monitoring station in 2008, 2009 and 2010. B, Egg production (EP) . Bars: standards deviations. Samples collected at a fixed station (43°25'N, 03°40'E) in the Thau lagoon, close to Sète channel, with a WP2 net (200 µm mesh aperture). Mesozooplankton collected by horizontal hauls at 1 m depth.
Issued from : S. Boyer, M. Bouvy & D. Bonnet in Estuar, Coast. Shelf Sci., 2013, 117. [p.128, Fig.2]. Environmental parameters at the sampling station in 2008, 2009, 2010, in the Thau lagoon, close to Sète channel. . Bars: Standards deviations. A: temperature (°C); B, salinity (psu); c, chlorophyll a concentration (µg /L).
Issued from : S. Boyer, M. Bouvy & D. Bonnet in Estuar, Coast. Shelf Sci., 2013, 117. [p.132, Fig.6, A]. Acartia clausi: Relationship between egg production (EP) and prosome length (PL), in the Thau lagoon, close to Sète channel. . Black dotted lines represent the linear regression for all points.
Issued from : S. Boyer, M. Bouvy & D. Bonnet in Estuar, Coast. Shelf Sci., 2013, 117. [p.130, Table 2]. Summary results after model averaging: effects of each single environmental parameter Chl a (Chlorophyll a concentration), T (temperature), S (salinity and their interactions (:) on egg production in Acartia clausi and Acartia discaudata at the sampling station in 2008, 2009, 2010, in the Thau lagoon, close to Sète channel.
Issued from : S. Boyer, M. Bouvy & D. Bonnet in Estuar, Coast. Shelf Sci., 2013, 117. [p.131, Fig.5, A]. Acartia clausi: Egg production (EP) in function of salinity (S) and temperature (T) in the Thau lagoon, close to Sète channel. Blue circles: 2008; red circles: 2009; black circles: 2010.
Issued from : M.G. Mazzocchi, L. Dubroca, C. Garcia-Comas, I. Di Capua & M. Ribera d'Alcalà in Prog. Oceanogr., 2012, 97-100. [p.141, Fig.7]. Average annual cycle of abundance (ind. m3) of Acartia clausi at station MC in the period 1984-2006. Nota: Individual samples collected by vertical tows in the upper 50 m at station MC in the Gulf of Naples, depth < 100m.
Issued from : M.G. Mazzocchi, L. Dubroca, C. Garcia-Comas, I. Di Capua & M. Ribera d'Alcalà in Prog. Oceanogr., 2012, 97-100. [p.139, Fig.3]. Average annual cycle of (a) temperature (*C), (b) salinity (psu), and (c) chlorophyll a concentration (mg m3) integrated in the 0-50 m layer at Station MC (Gulf of Naples) in the period 1984-2006. Box-and-whisker plots have whisker range fixed at 1.5 times the interquartile interval.
Issued from : S. Zervoudaki, E.D. Christou, G. Assimakopoulou & al. in J. Mar. Systems, 2011, 86. [p.49, Fig.3]. Copepod abundance (a) (ind/m3, bars and line), number of species (a) (symbol) and relative abundance (b and c) (%, stacked bars) of the dominant copepod species on the total copepod populations at all stations from BS to AS following the BSW, during April 2008. Note that zooplankton sampling in BS was performed in 0-30 m. See Chart, figure 1 below for the transect between Aegean Sea (AS) and the Bosphorus (BS.
Nota: Mean egg production (egg/female/day) 38 ±2.7 (at BS); 12.9 ± 1.2 (at MS1); 21 ± 2.4 (at MS2).
Issued from : S. Zervoudaki, E.D. Christou, G. Assimakopoulou & al. in J. Mar. Systems, 2011, 86. [p.46, Fig.1]. Sampling station locations (depth contours in meters) investigated during the cruise in the Turkish Strait System (Bosphorus Straits, Marmara Sea and Dardanelles Straits) and in the northern Aegean Sea during April 2008. Line shows the intrusion of the Black Sea water (BSW) in the northern Aegean Sea.
Issued from : S. Zervoudaki, E.D. Christou, G. Assimakopoulou & al. in J. Mar. Systems, 2011, 86. [p.48, Fig.2]. Vertical profiles of temperature (°C), Salinity and Chl a (µg/l) at all stations from BS (Bosphore) to AS (Aegean Sea) following the BSW (Black Sea water), up to 50 m of the water column during April 2008. Note the different scale in salinity and temperature at DS and AS stations (see chart: fig.1 above)
Issued from : I. Uriarte, F. Villate & A. Iriarte in J. Plankton Res., 2016, 38 (3). [p.724]. Monthly time-series from 1998 to 2011 of Acartia clausi (black) and PCPCalanus (mostly C. helgolandicus, Paracalanus spp., Clausocalanus spp., Pseudocalanus elongatus (grey) in the inner estuary of Bilbao (NW Spain). Thicker lines are moving averages. Ro is the Spearman's rank correlation coefficient (***P<0.01; **P<0.05)
Nota: A. clausi showed positive correlation with precipitation and NAO index. PCPCalanus were correlated with chlorophyll a, EA index (East Atlantic pattern) and DOS (Dissolved Oxygen Saturation). The species, indigenous neritic species dominated the copepod assemblage from 1998 to 2002.
Issued from S. Razouls in XXIII rd Congress of Athens, 3-11 November 1972. [p.2]. Oxygen consumed by individual (adult) in the Banyuls Bay and equivalent carbon asked. (1) Hydrological season in the stability period: Eté = Summer: 18-20 °C; Hiver = Winter: 13-10°C. Espèces = species; Saison = Season; Lg céph.= cephalothoracic length; an = individual.
Issued from : G. B. Deevey in Bull. Bingham Oceanogr. Coll., 1960, 17 (2). [p.68, Table V]. Simple, partial and multiple correlation coefficients. for mean length of cephalothorax with the temperature and Chlorophyll of the day of sampling and averaged for the previous month. The calculed and observed mean cephalothorax length cycles of female Acartia clausi in Long Island Sound, (E coast U.S.A.) March 1952 to June 1953.
Issued from : G.B. Deevey in Bull. Bingham Oceanogr. Coll., 1960, 17 (2). [p.74, Fig.10]. Obsrrved seasonal variations in median cephalothorax length of female Acartia clausi (Marshall, 1949) in Loch Striven in 1933) compared with length calculated from the mean temperature and number of diatoms of the month previous to sampling.
Issued from : G. B. Deevey in Bull. Bingham Oceanogr. Coll., 1960, 17 (2). [p.73, Table VIII]. Correlation coefficients for mean cephalothorax lengths with the temperature and phytoplankton of the day of samplingt and averaged for the previous four weeks obtained with 21 and 20 pairs of data for female Acartia clausi from Loch Striven (W Clyde estuary)). Quantity of diatoms (data published by S.M. Marshall, 1949 . In 1933 the extreme range temperature at 0 m was 4.5-16.4°C and at 30 m 6.37-12.98°C.
Issued from : G.A. Deevey in Bull. Bingham Oceanogr. Coll., 1960, 17 (2); [p.76, Table IX]. Correlation coefficients for mean cephalothorax lengths for Acartia clausi with the temperature at sampled and averaged for the previous month from the English Channel (data from Digby, 1950)..
Issued from : L. Yebra, A. Hernandez de Rojas, N. Valcarcel-Pérez & al. in Mar. Ecol. Prog. Ser., 2019. [p.8, Table 4] Mean length (mm) and width (mm) corresponding standard length (SL, mm) of the potential predator (Sardina pilchardus) calculated as in Morote & al. (2012), 1 length after Conway (2012).; bold indicates develpmental stages falling within the expected prey size for the sardine larvae in the study (SL < 20 mm).
Issued from : W.C.M. Klein Breteler, N. Schogt & J. van der Meer in J. Plankton Res., 1994, 16 (8). [p.1045, Table I]. The mean duration (days), its standar error (SE) and the among-cultures variance (% of the total variance) of the life stages Acartia clausi cultured at 15°C and excess food. Negative values of among-cultures variance are indicated by 0. Nauplii (1-6) and copepodites (7-11). The summed duration of females (generation time.br> Nota: individuals from the North Sea (Texel, Netherlands Institute for Sea Research). The brood was raised to maturity at excess food from continuous cultures of Rhodomonas sp. (4.8-8.5 µm ESD) and Isochrysis galbana (3.6-7.0 µm ESD). The heterotrophic dinoflagellate Oxyrrhis marina (10.4-19.0 µm) lived together with the copepods in the culture tank.
Issued from : R.C. Subbraju & K. Krishnamurphy in mar. Biol., 1972, 14. [p.28, Table 2] Duration of developmental time in relation to latitude in different species of the genus Acartia.
Issued from : R.C. Subbraju & K. Krishnamurphy in mar. Biol., 1972, 14. [p.28, Table 4] Number of generations and developmental period recorded in A. clausi and A. tonsa at various localities.
Issued from : C.B. Miller in Biological Oceanography 2004/2005, Blackwell Publishing. [p.155, Fig.7.18]. From Uye, 1982 Seasonal variation in body length (prosome: black circles) of adult female Acartia clausi in Onagawa Bay compared to water temperature
Issued from : C.B. Miller in Biological Oceanography 2004/2005, Blackwell Publishing. [p.155, Fig.7.19]. From Uye, 1982. Relationship of dry body weighjt to prosome length (not including the tail or urosome) in Acartia clausi ofv Onagawa Bay.
Issued from : C.B. Miller in Biological Oceanography 2004/2005, Blackwell Publishing. [p.156, Fig.7.20]. From Uye, 1982. Stage of development vs. development time in Acartia clausi reared in the laboratory with abundant food at temperatures from 2.5 to 23.2°C. Individuals from Onagawa Bay (Japan). Miller note that development time in the laboratory as function of temperature is an approximation because the laboratory rate applied to predict stage duration from the temperature is not inhibited even partially by low food levels, but usually for inshore habitats it seems justified.
Issued from : C.B. Miller in Biological Oceanography 2004/2005, Blackwell Publishing. [p.157, Fig.7.22]. After Uye, 1982. Relationship of daily estimates of production to biomass ratio (P=/B) for Acartia clausi in Onagawa Bay (Japan) to temperature. Miller note that over the 1.5 year study, the lowest productivity was 0.0374 mgC m-3 day-1. Some of that comes from stock variation, some from growth rate variation (vs. temperature). Total annual production was 163 mgC m-3 yr-1, or about 2.5 gC m2 yr-1. In a nearshore embayment like this the primary production is very likely of the order of 500 gC m-2 yr-1. If we assume that the gross growth efficiency of these copepods is about 20% (a low-sde estimate), then they use about 12/500 or 3% of the primary production.
Issued from : C.B. Miller in Biological Oceanography 2004/2005, Blackwell Publishing. [p.157, Table 7.1]. Acartia clausi dominant zooplankters in coastal waters. Data characterize the season of peak production. Mostly taken from Landry (1978): From the Black Sea (Petipa, 1967): 15 mgC m-2 day-1. From Onagawa Bay, Japan (Uye, 1982): 2.5 mgC m-2 day-1. Miller underlines the difficulties of the production estimations for single species, and virtually none for whole systems, but we would like to know how much food the oceans produces for animals we harvest like herring, anchovy, cod, and pollack. See Huntley & Lopez, 1992: model); Kleppel, Davis & Carter, 1996; Huntley, 1996; Hirst & Sheader, 1997; Hirst & Lampitt, 1998; Vidal, 1980.
Issued from : S. Ban, C. Burns, J. Castel, Y. Chaudron & al. in Mar. Ecol. Prog. Ser., 1997, 157. [p.289, Table 1]. Synopsis of feeding/reproduction experiments. A total of 17 diatom and 16 copepod species, representative of a variety of worldwide temperate and subarctic environments (E: estuarine, C: coastal ocean), were screened. Data for fecundity and hatching success are average values measured at the start and end of the inciubations in a minimum of 3 replicate batches, showing the variation in time of the effects of diatoms on copepod reproduction. Level of significance of the diatom effect between treatments and controls (e.g. non-diatom diets) in categories I to III was p < 0.01. No.. rank (for comparison with Table 2, p.290). For the signification of the categories I to IV (fecundity vs. Hatching success vs. Duration of experiment days-1): See Calanus finmarchicus. List of the 12 marine or estuarine species studied (fresh water excluded. CR): Acartia clausi, A. grani, A. steueri, A. tonsa, Calanus finmarchicus, C. helgolandicus, C. pacificus, Centropages hamatus, C. typicus, Eurytemora affinis, Temora longicornis, T. stylifera.
Issued from : S. Ban, C. Burns, J. Castel, Y. Chaudron & al. in Mar. Ecol. Prog. Ser., 1997, 157. [p.290, Table 2]. Combinations of copepod and non-diatom diets in controls in concentrations ranging from 104 to 105 cells ml-1. Data for fecundity and hatching success are average values measured at the start and end of incubation in a minimum of 3 replicate batches. N.A: natural assemblages of phytoplankton at time of incubation were for No 1, 40% diatoms, for No 2, >50% diatoms.
Nos1, 2, 3: Category I, No 30: Category III.
Atlant. (N & S), Brazil (Cananéia), Congo, Inory Coast, Ebrié Lagoon, Casamance, Dakar, Bermuda, Chesapeake Bay, Delaware Bay, Long Island Sound, Narragansett Bay, off Woods Hole, Buzzards Bay, Cape Cod, Damariscotta estuary, Halifax, Nova Scotia (E & SW), Shédiac Bay, Northumberland Strait, Bedford Basin, Passamaquoddy Bay, G. of St. Lawrence, Rimouski, W Labrador, Tessiarsuk fjord, S Iceland, off Morocco-Mauritania, Cap Ghir, Canary Is., off Madeira, Portugal, Mondego estuary, Ria de Aveiro, Coruña, off W Cap Finisterre, Vigo, Santander, Bilbao estuary, Bay of Biscay, Arcachon Bay, Gironde estuary, La Pallice roadsteadt, Glenans Islands, Belon estuary, Ireland, Galway Bay, Lough Hyne, Bristol Channel, Millport (Scotland), Roadstead of Brest, English Channel, Roscoff, Morlaix estuary, Granville, Plymouth, Pas de Calais, North Sea, Oslofjord, Skagerrak, Gullmar Fjord, Kattegat, Gullmar Fjord, Helgoland Roads, Bay of Lübeck, Gulf of Mecklenburger, Faroe, Norway Sea, Norway (fjords, Raunefjorden, Kosterfjorden), Beaufort Sea, White Sea, Barents Sea, Pechora Sea, Kara Sea, Ibero-morocco Bay, off W Tangier, Medit. (Alboran Sea, Habibas Is., Sidi fredj coast, Algier, N Tunisia, Bay of Tunis (laggon), G. of Gabes, Malaga harbour, Mar Menor, Castellon, Baleares, off Barcelona, Banyuls, Thau lagoon, Gulf of Fos, Marseille, Toulon, Villefranche-s-Mer, Ligurian Sea, Lake Faro, Naples, Tyrrhenian Sea, Milazzo, Strait of Messina, NW Tunisia, Sfax, G. of Gabès, Adriatic Sea, Lljet Is., Venice lagoon, Po delta, G. of Trieste, Taranto, Ionian Sea, Aegean Sea, Thracian Sea, Lebanon Basin, Iskenderun Bay, W Egyptian coast, Alexandria, Bardawill Lagoon, Marmara Sea, Black Sea, Agigea (cosat), Sevastopol Bay), Caspian Sea, Port Said, Ballah (Km. 54 from Port Said), Suez Canal, Hurghada, Red Sea, Indian (rare, Pichavaram mangrove), ? China Seas (Bohai Sea, Yellow Sea, East China Sea), S Korea, Japan Sea, Maizuru Bay, Japan (Izu, Tokyo Bay, Non Onagawa Bay, Shijiki Bay, Inland Sea) , ? Aleutian Is., ? Alaska, ? Icy Strait, ? British Columbia: Fjord system (Alice Arm & Hastings Arm), Hecate Strait, ? Vancouver Is., ? off Washington, ? Georgia Strait, Oregon (coast, Yaquina), San Francisco Bay, California, off La Jolla, Baja California (W), Bahia Magdalena, G. of California, La Paz, Acapulco Bay, G. of Tehuantepec, W Costa Rica, ? Australia (Swan River estuary, New South Wales, Great Barrier, SE), Peru, Chile
Littoral, néritique. Rarement au large et mésopélagique (in Roe, 1984), parfois bathypélagique (Farran, 1926). Les formes signalées dans le Pacifique nécessitent d'être révisées (cf.: Carillo, Miller & Wiebe, 1974). Pour ces auteurs les formes atlantique et pacifique sont génétiquement différentes puisque l'interfécondation réalisée expérimentalement n'était plus possible. Bradford (1976) considère, comme d'autres auteurs, que la très vaste répartition géographique de A. clausi doit recouvrir l'existence d'espèces distinctes (rejet de l'hypothèse de variétés résultant des conditions écologiques). Confondu dans le Pacifique NW et les mers arctiques avec A. hudsonica (cf. in Bradford, 1976; Ueda, 1986); en Corée et au Japon avec A. omorii et A. hudsonica (Kang & Lee, 1990), avec A. ensifera en Nouvelle-Zélande. Parfois confondu avec d’autres espèces comme A. margalefi dans les eaux saumâtres européennes (les caractères morphologiques observés superficiellement ne permettent pas de la distinguer de A. clausi, si ce n'est la différence de taille; de même qu'avec Acartia teclae. Seregin & Piontkovski (1998) indiquent pour cette espèce des tolérances de salinité de 5 à 35 ppm. la présence de cette espèce est confirmée dans les mers de Chine par W. Zhang (comm. pers. 2006).
Rem: une analyse biométrique réalisée sur un individu (Razouls, 1972) n'a montré aucune différence entre notre individu prélevé à Banyuls et les figures données par Giesbrecht (probablement à Naples) à plus de 80 ans de distance. D'après Greze & Baldina (1964, p.249), à partir des variations du nombre des oeufs et des stades nauplii, estiment le nombre de générations à 7 en Mer Noire (près de Sébastopol), soit mi-mai, fin juin, début août, début septembre, mi-novembre, début février et début avril. La durée du développement est différente pour chaque génération et varie entre 1 mois en été et 2-3 mois en hiver, en relation avec les modifications thermiques des eaux qui en 1960-1961 variaient dans la couche superficielle entre les isothermes de février 6-7°C et ceux d'août 22-23°C. Ainsi on peut admettre que l'espèce a trouvé dans la Mer Noire des conditions de température favorables lui permettant d'étendre sa période de reproduction toute l'année. On observe que la reproduction la plus forte et des divers stades copépodites coïncident avec la période printemps-été et un minimum d'octobre à décembre. La population d' Acartia clausi dans la Mer Noire se distingue par rapport à d'autres zones géographiques. Par exemple, d'après les obsevations de Conover (1956) faites dans le détroit de Long-Island, l'espèce disparaît presque entièrement depuis août juqsqu'à novembre-décembre et pour le reste de l'année donne 4 générations. Digby (1950) estime que l'espèce dans la région de Plymouth a 5 et peut-être 6 générations (depuis la fin avril jusqu'à octobre) et qu'elle ne se reproduit pas au cours des mois d'hiver. Voir in Ayukai (1987, p.579) en ce qui concerne la nutrition dans un milieu nutritif diversifié et de particules inertes.
Voir aussi les remarques en anglais
Dernière mise à jour : 12/11/2020
Toute utilisation de ce site pour une publication sera mentionnée avec la référence suivante :
Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2020. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 01 décembre 2020]